Question
The diffraction pattern due to a single slit of width 0.4 cm is obtained with the help of a lens of focal length 30 cm. If wavelength of the light used is 589 nm, calculate the distance of the first dark fringe and the consecutive bright fringe from the axis.
Answer :
Word Count : 49
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Given, d = 0.4 cm = 4 x 103m
D = 30cm = 0.3m
λ = 589 nm
n=1
As
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